Quote:
Originally Posted by cam_girls
John was born in say 1984
Reese was born in say 2000
There is no way John could be Reese's son until after the trip back in time.
So the only conclusion is Reese was not John's original father, and they
changed history. Lucky Sarah didn't have a girl!
But there was one man who taught us to fight, to storm the wire of the camps, to
smash those metal motherfuckers into junk. He turned it around.
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the only reason you think that cause must preceed effect is because you precieve time as moving forward. the duality of time theory (time flows backwards) which is necessary for time travel to exist, means that relationship is reversed effect can preceeds cause.
If time is a closed loop the begining and the end are the same place.
The concept has been around since early greek methology, although it was based on prophecy not time travel, the knowledge of the future (prediction) causes the behaviour that creates that future.
think of it this way, if there were no alternate realities, and the 4th dimension was the upper bounds of all existance (one of the possiblities of Enstiens theories) then there is no change possible, the past has already happened including everything you did/will do in the past.